Click title to read one, or click date to read all below it.
04-12-04
78 reproduction needs different riaa curves than 33 lp repro ... Elizabeth
04-12-04
True elizabeth. i found an article at mechanical music dige ... Albertporter
04-12-04
I have heard favorable comment on a radio shack ic-based pho ... Eldartford
04-12-04
I actually heard that rat shack thing. believe it or not, y ... Jphii
04-12-04
Have any of you heard the bottlehead seduction? there are c ... Albertporter
04-12-04
Hi albert, i find it interesting that you are also delving i ... Buscis2
04-12-04
I'm sorry albert. when you click on the link, it brings you ... Buscis2
04-12-04
The current fascination with "rim drive" (idler wh ... Eldartford
04-12-04
Eldartford, you appear to not like old (inexpensive) technol ... Albertporter
04-12-04
What cartridge are you considering? i have seen some special ... Restock
04-12-04
Hi all fwiw i have enjoyed using a lenco 75 with mono goldr ... Bornin50
04-12-04
Albertporter...like wine, some old technology is superb, and ... Eldartford
04-12-04
Well i find this discussion of cheap'n fun phono stages fasc ... Johnnantais
04-12-04
Albert, jean turned me on to the asl mini, which he loves, w ... Bin
04-12-04
Eldartford. i don't need anything nor would i ask it of yo ... Albertporter
04-12-04
The grado family of cartridge builders have been around for ... Theaudiotweak
04-12-04
Albertporter...i guess i didn't grasp that your objective is ... Eldartford
04-12-04
I can help you there, eldartford. the lenco can play over a ... Johnnantais
04-12-04
Johnnantais...thanks for the good writeup about idler wheel ... Eldartford
04-13-04
Johnnatais has answered the variable speed questions about t ... Albertporter
04-13-04
Eldartford, the speed variations caused by belt reaction fal ... Johnnantais
04-13-04
Another deck, unfortunately more rare (particularly outside ... Willbewill
04-13-04
Johnnantais...a massive turntable will prevent high frequenc ... Eldartford
04-13-04
Eldartford, do you know i never actually tried to play 78s o ... Johnnantais
04-13-04
Where did the information above come from about "mass l ... Rich121
04-13-04: Johnnantais
Richard, the information came from nowhere but simple physics, my own experiments and experience with my own large collection of record decks, and the almost universally-noticed phenomenon that high-mass record decks simply don't have the "boogie factor" that low-mass decks like the Linn LP12 (and other similar decks) have. Rubber belts react, being rubber bands or springs, if you will. As the belt stretches on one side due to the braking action of groove modulations (the greater the modulations the greater the braking action) and the continuing pull of the motor, it must eventually contract. The lighter the platter, the more quickly it will contract. The heavier the platter, the greater the energy required to drag it (mass/inertia), and the slower the reaction, which affects the bass frequencies and thus the rhythm.
As I wrote up above, this is my theory to account for what I and others have heard and continue to hear. Take for instance this discussion on this forum of the strengths of various designs in "VPI Scout or Michell Technodec?": "But I would say that I'm now a believer in the 'theory' that high mass decks rob music of the life/prat/essence of music on vinyl. I don't see that teres does anything to handle resonance other than throwing lots of mass at it and this results in a dull presentation that I personally find boring and takes away one of the important reasons I love vinyl." Add to this the HiFi World review of the Garrard: "I also strongly suspect, after listening to the very clean transient starts and stops supported by this turntable, that its high torque drive system suffers less from dynamic slowing than belt drives." Simply a theory drawn from a series of sources and personal experience.
Once again I resort to the most recent consideration of this phenomenon (which I have followed avidly ever since discovering idler-wheel drives) from a Stereo Times review of the Origin Live turntable: "I must admit to severe disappointment with the musical delivery of most of the High End turntables and tonearms beloved of US audiophiles. This was as true in 1973 as it is today. Consequently I ran Duals and AR’s instead of the Thorens and Japanese direct-drives that were the rage in the mid-70’s; a Connoisseur when everyone lusted for a Technics SP 10, Kenwood KD 500 or Denon direct drive. Similarly, I owned Regas and Linns when Goldmunds, Well-Tempereds, SOTA’s and VPI’s were the High End darlings. The overall pre-occupation with stereoscopy and with sonic special effects of most High End record players pays too little attention to the core values of musical communication. (One prominent designer even admits that he was no idea of how to design a turntable with that sine qua non of the UK design school: articulating rhythm, phrasing, tempo and drive.) Consequently I find these tables turgid, dissecting, prosaic and unable to dance: you hear everything about the sonic event except what the music means."
While this phenomenon has been noted for as long as I have been paying attention (mid-'80s), the only theory so far to account for it is that mass absorbs energy and releases it over time, the greater the mass, the slower and more drawn-out the release. I submit that it is not this (heavy idler-wheel 'tables for instance and heavy direct drives do not suffer this problem with PRaT...all dance clubs use direct drives), but simple belt reaction, the heavier the platter, the slower the reaction. Of course, anyone can react to this theory in a number of ways: 1) deny that high-mass belt-drive 'tables have any problem with PRaT; 2) PRaT is an illusion; 3) high-mass aborbs energy and releases it over time; 4) disagree with all of the above and wait for a better theory; 5) agree with the theory. There are probably other reactions, and I'm sure at some point I will discover them. I read all record player reviews I can uncover (it is a sickness with me), as I find the whole "design's impact on the music" thing fascinating. I experiment extensively at home, and listen to various decks when I can in other systems. It's that "magic" factor that I find supremely important in music, and I believe this comes down to timing, or PRaT, as does the above reviewer and Art Dudley, among many others. The pursuit of high mass in record player design is a runaway train with no musical (PRaT) foundation.
Johnnantais (System | Threads | Answers | This Thread)
04-14-04
I opened my new decca arm today and it is beautiful. unbeli ... Albertporter
04-14-04
Richard for an explanation? of the 'belt stretch/speed anom ... Bornin50
04-14-04
Richard apologies - this is the correct link http://www.i ... Bornin50
04-14-04
Excellent site, bornin, it's added to my vinyl file! Johnnantais
04-15-04
Still not hearing from audiogon members as to which phono st ... Albertporter
04-15-04
Dear albert & others: two links, one for multicurve riaa, a ... Gregm
04-15-04
Albert, the ear is nowhere near the mini phono in terms of p ... Johnnantais
04-15-04
What about the gsl jazz club phonostage, which is designed s ... Bmckenney
04-15-04
Bmckenney, that would be perfect. i hope you make that liste ... Albertporter
04-15-04
Albert: will you be listening to the 78's in true mono? pr ... Dekay
04-15-04
Cool idea dekay. if i take over another room my wife will h ... Albertporter
04-16-04
Don't be a spoil sport albert. your wife may just be intere ... Dekay
04-16-04
Then we would have to get one of those dogs like rca used in ... Albertporter
04-16-04
Albert, i talked to a buddy of mine who built the newest ve ... Jphii
04-16-04
Thanks for the link jphii. good news too as this is a true ... Albertporter
04-17-04
I just wrote an email to the mingda people, asking about the ... Albertporter
04-17-04
Mingda and chineese tube gear..... i was considering that o ... Bmckenney
04-17-04
To do this right, someone would need a sample of five or six ... Albertporter
04-17-04
As for cartridges, you might take a look at grado. there is ... Jc2000
04-18-04
I was thinking two head shells and two cartridges. 78's are ... Albertporter
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